package zjh.rbac.service.array;

import    zjh.rbac.domain.dto.DeptDto;
import    zjh.rbac.domain.entity.Dept;
import    zjh.rbac.service.IDeptService;
import    zjh.rbac.service.IUserService;
import    zjh.rbac.domain.vo.DeptVo;
import    zjh.rbac.domain.vo.Result;




public class DeptService extends BaseService<Dept, DeptDto, DeptVo> implements IDeptService {

    private static IDeptService singleton;
    private IUserService userService;

    private DeptService() {
        data = new Dept[DATA_SIZE + 1];
        temp = new DeptVo[DATA_SIZE];
    }

    public static IDeptService getInstance() {
        if (singleton == null) {
            singleton = new DeptService();
        }
        return singleton;
    }

    @Override
    DeptVo convertToVo(Dept dept) {
        return new DeptVo(dept.getId(), dept.name, dept.phone);
    }

    @Override
    Dept createEntity(DeptDto dto, int id) {
        return new Dept(id, dto.name, dto.phone);
    }

    @Override
    void updateEntity(DeptDto dto, Dept dept) {
        dept.name = dto.name;
        dept.phone = dto.phone;
    }

    @Override
    public Result delete(int id) {
        if (!existsById(id)) {
            return Result.failure("删除失败，不存在该数据");
        }

        if (userService == null) {
            userService = UserService.getInstance();
        }

        if (userService.deptInUse(id)) {
            return Result.failure("删除失败，还有用户属于该部门，不能删除！");
        }

        data[id] = null;
        return Result.success("删除成功", null);
    }

}
